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The Status Byte is an 8 bit word that the 3314A will output when involved in a
Serial Poll. The state of each bit
function. A bit will be set after that bit has been unmasked and the bit condition
is satisfied. After the Status Byte is sent (all bits reset to 0), the
set again if the condition(s) does not change.
Exceptions that automatically reset a bit-and send another SRO message-immediately
after the 3314A sends its Status Byte are:
OVERLOAD
TRIGGER when in Gate Mode
BUSY FLAG (no SRO sent)
The following statement reads the 3314A's Status Byte.
STATUS 707;S
7
I
' - - - - - - - - - - - - - - - Service Requested
THE STATUS BYTE
or 0) indicates the status of an internal 3314A
(1
3
2
0
1
98
bitlsl
3314A Error or Failure
1 .. Error or FaHure
0
1
SRO on
to
transition
Rag
1
on 0
1
SRO
to
transition
Alert
1 cAlert
0
1
SRO on
to
transition
1 ,. Overload
1
SRO
to
1
to 1 transition
SRO
PU
or
PlI
Mask PROGRAM CODE or
SRO on
0
to
1
transition
1 =3314 set SRO true
1 .. 331 4 processing
HP·IB
SRO on 1 to 0 transition
will not be
codes
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